Answer :

Answer:

-27

Step-by-step explanation:

-Let's take the number we don't know as x

- all we do is substitutein the x which is our unknown number

3 - x / 6 = 5

We want to get rid of the fraction so we have to multiply 5 by 6 which  gives us 30

So now we are left with 3 - x = 30

We just want x by itself so we are going to take away 3 from 30 to get rid of the 3 from the x side

-x  = 27

We want x as a positive number so we have to multiply -x and 27 by -1

This is because a negative number multiplied by another negative number gives us a positive number.

Remember that whatever we do to the left side,we do the same to the right

-x  =27

×-1  ×-1

 x=27

Now x is positive we can see that the answer is -27.

This means that the unknown number is -27.

Hope this helped.